Guide to Explosive Atmospheres & Hazardous Locations
Intertek Guide to Explosive Atmosheres and Hazardous Locations 5 Protection Concepts [ATEX and IECEx] Type of Protection Symbol Typical IEC EPL Typical Zone(s) IEC Standard Basic concept of protection Electrical equipment for gases, vapours and mists (G) Optical Radiation Op pr Op sh Op is Gb Ga Ga 1,2 0,1,2 0,1,2 IEC 60079-28 IEC 60079-28 IEC ...